Blue Moon: what promises us the second this year's rare astronomical phenomenon. Blue Moon: what is the danger of the phenomenon

The second full moon of the month in astronomy is called the Blue Moon, which is not associated with the shade of the satellite, but with the idiom in English - "Once in a Blue Moon", which translates as "Once in a Blue Moon" and is equivalent to the expression "After the rain on Thursday." This phenomenon occurs every 3-4 years, when the date of one of the full moons falls at the beginning of a calendar month, and the next one occurs right before the end of that month. Usually there are 12 full moons in a year and each has its own name, the Blue Moon was called the 13th full moon, which sometimes happens in some years.

In fact, on rare occasions, the moon can take on a bluish tint. For example, on cold winter nights, when ice crystals in the air form a halo around the moon, moonlight is scattered, which causes this effect (light in the blue part of the spectrum is scattered in the atmosphere much more than red).

Also, an unusual shade of the moon may appear as a result of a volcanic eruption - for example, in 1883, the Indonesian volcano Krakatoa erupted, which was so powerful that columns of ash rose into upper part atmosphere. The ash particles absorbed the red part of the spectrum, which caused the moon to appear blue (sometimes green) for several years. Volcanologist Scott Rowland from the University of Hawaii said that the sun then turned into lavender color, and the sunsets were so bright red that people in New York and some other cities called the fire brigade assuming a fire.

Anyway, it is the rarity of such events (two full moons in the same month, a bluish moon) that gave rise to the English saying "Once in a Blue Moon" - something that happens very rarely. The calendar was compiled for the city of Moscow.

Select year: Popular lunar calendars

The Blue Moon is the second Full Moon in the same month. This phenomenon is quite rare, since we can observe it once every 2.7 years. This happens because there are only 29.53 days in the lunar month, which is significantly less quantity days on the calendar. Therefore, sometimes in a year we see not 12, but as many as 13 Full Moons.

Many people ask if the Moon will turn blue and why is this phenomenon called the Blue Moon? No, the Moon will not turn blue and will continue to delight us with its usual appearance. A beautiful figurative name borrowed from English expression"Once in a Blue Moon", the equivalent of our expression "After a rain on Thursday".

There will be two Full Moons in March

On March 2 at 00:51 UTC, the first Full Moon of March will occur. It will be at 15 lunar day and the transit of the Moon in Virgo. This Full Moon will turn our attention to duty and responsibility, as well as to the small details that make up our lives. From the moment of this Full Moon, it will be possible to streamline your life and put everything in order.

On March 31 at 12:37 UTC, there will be the second Full Moon in March, which is also called the Blue Moon. This Full Moon will be during the 14 lunar day and the Moon in Libra.

How will the Blue Moon in March 2018 affect our lives?

The Blue Moon in March 2018 will occur during the Moon in Libra. This means that we will need to harmonize our lives and find balance. On the one hand, there will be questions of work, the fulfillment of one's duty and obligations, on the other hand, there will be personal relationships and enjoyment of life.

This Full Moon is very strong as it fell on the day of the second chance to start over - the 14th lunar day. On this Full Moon, you can make a Desire Map and rituals to attract various benefits into your life. And they will be very strong.

The Blue Moon in March 2018 will help you see how balanced your life is, harmony or imbalance reigns in it. If this Full Moon you feel inner peace, the desire to create and enjoy life, there is harmony in your life. If the mood changes every minute and you feel inner discomfort, then it's time to change something.

The full moon at the end of March 2018 will greatly affect the future. That is why on this Full Moon it is important to talk and think only about what you want, to do things that lead to your goals.

You can not be lazy on this day, drink alcohol, smoke, quarrel with anyone. People become inattentive and careless. The Full Moon increases the risk of accidents and injuries, as well as the number of crimes. Be careful and take care of yourself.

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within one calendar month. This is a fairly rare event, occurring on average every 2.7154 years, in different countries and different times named after it. The name is due not to a change in the color of the moon, but to an idiomatic expression Once in a Blue Moon, borrowed from English. It translates as "Once Upon a Blue Moon" and is equivalent to the Russian expression "After the rain on Thursday"(i.e. very rarely or never). The full moon itself has the usual, ash-gray color; appearance at the moon blue tint is extremely a rare occurrence due to the optical effect.

In popular culture

The phrase " Blue Moon” is found not only in astronomy. In the song of the group "Bravo" "It's dawn outside the window" the phrase is found in its original meaning ("Where does the morning hide three thousand stars, not counting the blue moon"). Also, "Bravo" on the album "Road to the Clouds" (1994) features the song "Blue Moon Blues". In 1998, Boris Moiseev and Nikolai Trubach recorded the song "Blue Moon", which became popular overnight, and the phrase "Blue Moon" became associated with homosexuality among the mass listener.

see also

Notes

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See what "Blue Moon" is in other dictionaries:

- (Blue Moon), Austria, 2002, 90 min. Comedy. Border of Austria and Slovakia. Johnny and Shirley artistically steal a car from a simple-minded bandit. In Bratislava, a couple unsuccessfully tries to sell a car. While Johnny is loading up on beer, the girl... ... Cinema Encyclopedia

Mol. Homosexual. Vakhitov 2003, 40 ...

Blue moon: A blue moon is a term used in astronomy to define the second full moon within one calendar month. Blue Moon is a fantasy novel in the Anita Blake book series by the American ... ... Wikipedia

- (eng. Aurelia and Blue Moon) hypothetical examples of a planet and moon on which extraterrestrial life could arise. This project was the result of fruitful cooperation between Blue Wave Productions Ltd. and groups of American and ... ... Wikipedia

Blue Moon. Mol. Homosexual. Vakhitov 2003, 40. The moon has set (found) on whom, to whom. Psk. Unapproved About whose l. unpredictable mood, desire, behavior. SPP 2001, 50. The moon is young. Gorky, Wed. Ural, Sib. New moon. BalSok., 42; SRGSU 2,… … Big Dictionary Russian sayings

The flag of an independent lunar colony in the novel The Moon is a Harsh Mistress by Robert Heinlein The Moon in Art The use of the image of the Earth's natural satellite in works of art. The moon has always been the focus of people's attention since time immemorial. ... ... Wikipedia

This term has other meanings, see Moon (meanings). Moon ... Wikipedia

Lunar myths myths about the Moon (usually in some relationship with the Sun), found in almost all peoples. The most common plot found among the Indo-European, Siberian, Indian peoples is the motive of a heavenly wedding: the Sun and ... ... Wikipedia

moon- crimson (Balmont, Bunin); serene (Balmont, Shapir); serenely quiet (Sologub); immortal (Balmont); insane (Balmont); brilliant (Andreev); pale (Zhukovsky, Lermontov, Frug, Nekrasov, Sologub, Fofanov); white (P.Ya.); "Marriage ... ... Dictionary of epithets

For Moonlight, see other uses. Moonlighting Detective Agency Moonlighting ... Wikipedia

Books

• Puzzle-1000 Anne Stokes "Blue Moon" (39462) , . The 1000 pieces puzzle is part of the "High Quality" collection. The name of the collection speaks for itself: “ high quality puzzles has been strictly controlled by the manufacturer for over 40 years. Such puzzles…

Blue moon is an astronomical term that has a double meaning.

1. Traditional (seasonal) - "Blue Moon" is the third full moon in the astronomical season, which has four full moons instead of three. In this case, the chronology is carried out according to the system with a tropical year, in which the beginning of the year is considered the day of the winter solstice.

2. Modern (monthly) - "Blue Moon" is the second full moon, falling on one calendar month.

This phenomenon occurs every 3-4 years, when the date of one of the full moons falls at the beginning of the calendar month, and the next comes right before the end of the same month.

The appearance of a blue tint on the Moon is an extremely rare phenomenon due to an optical effect.

The moon can take on a bluish tint on rare occasions. For example, on cold winter nights, when ice crystals in the air form a halo around the moon, moonlight is scattered, which causes this effect (light in the blue part of the spectrum is scattered in the atmosphere much more than red).

It is known that light with wavelengths corresponding to blue color and its shades, is better dissipated in the earth's atmosphere. This is due to the fact that the frequency of the scattered light is much less than the natural frequency of the molecules, a similar phenomenon in physics is called Rayleigh scattering. The same thing happens when the moon turns blue. In this case, the light is scattered not only by air molecules, but also by dust particles produced by large fires or volcanic eruptions. For example, in Alberta (one of the provinces of Canada), after a strong fire in peat bogs on September 23, 1950, which had been slowly smoldering for many years, thick smoke containing particles about 1 micrometer in diameter spread to the south and east of the country. Thanks to this, the moon and even the Sun, visible during the day, have acquired lavender and blue hues.

In addition, an unusual hue of the moon can appear as a result of a volcanic eruption, for example, in 1883, the Indonesian volcano Krakatoa erupted, which was so powerful that ash columns rose into the upper atmosphere. The ash particles absorbed the red part of the spectrum, which caused the moon to appear blue (sometimes green) for several years. Volcanologist Scott Rowland of the University of Hawaii said that the sun then turned lavender and the sunsets were so bright red that in New York and in some other cities people called firefighters, suggesting a fire.

The rarity of such events as a bluish moon gave rise to the English saying "Once in a blue moon", i.e. something that happens very rarely.

The next additional full moon on our planet can be seen on January 31, 2018, however, only residents of time zones located closer to the west will observe the Blue Moon.

The expression "Blue Moon" is a translation of the English term "Blue Moon".
The designation of the event has nothing to do with the color of the moon. Therefore, it would also be correct to translate it as "Blue Moon". Although the established translation of the term is "Blue Moon".

Currently, the term "Blue Moon" ("Blue Moon") denotes. At the same time actually.
Such an event occurs quite rarely. On average, about once every 2.7 years.
.

Idiom with "Blue Moon"

In English, even a phraseological unit appeared with the term “Blue Moon”, - “Once in a Blue Moon”. And very popular. It is considered to be one of the ten most common English idioms.
The literal Russian translation of this idiomatic expression- "Once upon a blue (blue) moon."
In English, this idiom refers to a very rare event or action performed only once or twice a year. The Russian equivalent phraseological turn is "After the rain on Thursday."

"Blue Moon" in various time zones

"Blue Moon" as an event of two Full Moons in one calendar month depends on the calendar used and geographical location(time zone).

For example, in the Julian calendar, which now differs from the Gregorian by 13 days, the months containing two full moons will be completely different from the "Blue Moon" months of the Gregorian calendar.

The influence of the time zone is less significant.
For example, there will be two Full Moons in a given month in Coordinated Universal Time (UTC). However, in the same calendar month, other time zones may have as little as one Full Moon. This can happen for two reasons: the first Full Moon of a month in a different time zone could be in the previous calendar month, or the second Full Moon could "crawl" into the following month.
First case.
The first Full Moon of the month falls on the first day of the calendar month. It may happen that at the time of the Full Moon in some time zones located west of the zero meridian, this month has not yet arrived. Accordingly, in this month in those regions, in contrast to the UTC time zone, there will not be two Full Moons.

Second case.
The second Full Moon in the UTC zone falls on the last day of the calendar month. Then in the eastern time zones, a situation may arise that at the time of the Full Moon, the next month will come.

A specific example of the dependence of the "Blue Moon" on the time zone.
. The second Full Moon of this month will occur on January 31st at 13:27 UTC. In the time zones UTC +11 (parts of Sakhalin and Yakutia) and UTC +12 (Kamchatka, Chukotka) at the time of the Full Moon, the 1st of February will already come. Accordingly, there will be no Blue Moon in these areas in January 2018.

When is Blue Moon?

In the Gregorian calendar, there are 12 or 13 Full Moons in a calendar year.
There may be two, one or no Full Moons in a calendar month.
Moreover, in almost all calendar months of the year there is exactly one Full Moon.
Not a single Full Moon in a month can only be in February ("black moon").
A Gregorian year contains a month with two Full Moons only when there are 13 Full Moons in that year or there are no Full Moons in February of that year.
If there are 13 Full Moons in a calendar year and there are no Full Moons in February, then this year there will be.
What will the moon be like during the Blue Moon? The Blue Moon is the second Full Moon of the month. At this moment, the lunar growth is replaced by its decline.

"Blue Moon" in July 2015

Blue Moon was in July 2015. The full moons took place on July 2 at 5:20 am and on July 31 at 13:43 Moscow time (UTC +3). The last "Blue Moon" is the Full Moon on July 31st, 2015.
Prior to that, Blue Moon was in August 2012. The second Full Moon occurred on August 31st.

After that, the "Blue Moon" will only be on October 31st, 2020.

"Double Blue Moon"

Double Blue Moon - an event when a calendar year contains two "Blue Moons". In other words: in two calendar months of one year there are two Full Moons.
A calendar year contains a month with two Full Moons, provided that there are 13 Full Moons in that year, or if there are 12 Full Moons in a year but no Full Moon in February. If there are 13 Full Moons in a year and there are no Full Moons in February, then this year there will be. That is, a double "Blue Moon" will occur only in that year of the Gregorian calendar, in which there are 13 Full Moons and there is a "black" Full Moon in February.
A "Double Blue Moon" is a rather rare event, occurring only a few times per century. The last Double Blue Moon was in 1999, the next one will be in 2018 and then only in 2037.
February without a Full Moon, like February without a New Moon (“black” Moon), happens on average only once every 23 years. In addition, the thirteenth Full Moon should also occur this year.
If there is a "Double Blue Moon" in a calendar year, then the first "Blue Moon" occurs in January, and the second in March, less often in April, or even more rarely in May.
In 2018 and 2037, the Blue Moon months are January and March.
In 1999, the first month of the Blue Moon is January. In the UTC time zone, the second month with two Full Moons is March. In more eastern time zones (including Russia) - April. The Full Moon of March 31, 1999, which is the second "Blue Moon" of 1999 in the West, becomes the first Full Moon of April in the East. The second "Blue Moon" in Russia in 1999 was the Full Moon on April 30th.
There can't be three Blue Moons in one calendar year..

The presence of a Double Blue Moon does not affect the frequency of Blue Moon years. Since, on average, 19 solar years account for 7 additional (thirteenth) lunar months (methon cycle). The only exception is when there are two Full Moons in December, and in February next year There are no full moons.

The origin of this interpretation of the term "Blue Moon"

In folklore North American Indians the twelve Full Moons of the year have their own names. The frequency (cyclicity) of these Full Moons is the solar year, beginning at the point of the autumnal equinox.
The first Full Moon of the year is the Full Moon closest to the autumnal equinox. This Full Moon is called "Harvest Moon". In addition, it is called "Corn" ("Corn Moon") or "Barley" ("Barley Moon").
This Full Moon falls at the end of the grain harvest.
Next comes the "Hunter's Moon", then the "Beaver Moon", and so on for nine more Full Moons. And again, having passed the annual cycle, the "Harvest" Full Moon appears.

As noted, the twelve Full Moons have their own names. However, during a solar year (the period of time between two successive autumnal equinoxes) there can be 13 full moons. This additional Full Moon is called the "Blue Moon".

Annual calendars with such folklore names of the Full Moons have been compiled and published since 1937 by the American farm magazine "Farmers" Almanac ".

The algorithm for inserting the "Blue Moon" into the sequence of twelve named Full Moons was as follows.
The points of the autumn and spring equinoxes, as well as the points of the summer and winter solstices, divided the solar year into four seasons. There are at least three Full Moons in each season. If there is a fourth Full Moon in any of the seasons, then the third Full Moon of that season was called the "Blue Moon".

In 1943, in an article in the astronomy magazine Star Quiz, the definition of the event referred to by the term “Blue Moon” was greatly simplified. In him Any second full moon in a calendar month has been called a "Blue Moon".

It is believed that it is.

Hypothesis about the antiquity of the term “Blue Moon”

Let's compare the already given facts about the term "Blue Moon" and the idiom "Once in a Blue Moon".
First, the current popularity of the idiomatic expression.
Secondly, the recent emergence of phraseologism.
Thirdly, the folklore of the Indian names of the Full Moons.
Fourth, a stable sequence of Full Moons that has been established for centuries with a rigid reference to solar year.

It turns out the following picture.
The idiom appeared quite recently (in the middle of the last century), and in a magazine for a very narrow circle of readers. The presence of the "Blue Moon" in any of the years of the calendar was not some kind of super-interesting event that deserves special attention.
Now this idiom with "Blue Moon" has become very common and is included in the top ten popular revolutions. in English. How and why did it become so popular?

Europeans during the colonization of America used solar calendars.
First Julian, then Gregorian. Apparently for them, the insertion of the Full Moon into the consecutive series of Full Moons was a very rare and incomprehensibly occurring event.

We believe that The term “Blue Moon” denotes an intercalary (13th lunar month) in the lunisolar calendar, and the idiom “Once in a Blue Moon” has much older roots than the middle of the 20th century.

The meaning of the phraseological unit “Once in a Blue Moon”, denoting a very rare and incomprehensible when the occurring phenomenon exactly coincides with the situation with inserted lunar months when there is a rare event and from the outside it seems that there is not enough clarity and uniformity. In addition, both calculation errors and arbitrariness in the Blue Moon inserts are quite possible.

Moreover, it is quite possible that the original source of the Blue Moon idiom has even more ancient roots.
At a time when a purely lunar calendar was in use without reference to the solar year. lunar year consisted of exactly 12 lunar months and each lunar month had exactly one Full Moon. Second full moon in the lunar month could not be in principle.
Then the progenitor of the idiom “Once in a Blue Moon” denotes an event that will never happen. An analogue of the Russian "when the cancer whistles on the mountain."